A time and temperature talking device project

[keeble]

Is there any setting has to be made in order to work EMIC? Actually I have connected components according to the given circuit and programmed it all the same accroding the the codes available on the site. I did not do anything. Will you plase tell me how to set the EMIC dip switch because i am really new for those stuffs. In the EMIC, it's said if switch 1 is set to on, it will command to ASCII format but I dunno how to set SW1 on. Is it at the programming or hardwared device itself? I did not see any physical switch at the EMIC. Will you please help me? Thank you.

Keeble

[Bruce]

Do you have the EMIC data sheet?

If you don't, I recommend you download a copy. http://www.parallax.com/dl/docs/prod...micModules.pdf

Unless you have a newer model EMIC, that doesn't have the switch, it should have a 2-position DIP switch
located just below the Winbond IC.

Just like the one shown in this photo below towards the center of the Winbond IC.
http://www.parallax.com/images/prod_jpg/30006.jpg

These are labeled 1 and 2 on the DIP switch. Move 1 to the ON position (up).

Page #5 in the data sheet covers the DIP switch.

[keeble]

As per given suggestion, I have set the EMIC DIP sw1 to ON. But still the EMIC device is unable to produce the sound. Do you think is there any other reason?

[Bruce]

Since this forum is for PicBasic, here's a simple test routine to check out the EMIC module.

DEFINE OSC 20

' -----[ I/O Definitions ]---------------------------

Tx    VAR PORTC.0   ' wire to EMIC sin pin
Busy  VAR PORTC.2   ' wire to EMIC busy pin
Rst   VAR PORTC.1   ' wire to EMIC reset pin

' -----[ Constants ]---------------------------------

BAUD            CON     0  ' T2400
Yes             CON     1

' -----[ Initialization ]----------------------------
  TRISC = %000010100
  
Setup:
  GOSUB Hard_Reset                 ' restore defaults
  PAUSE 1000
  SEROUT TX, Baud, ["volume=7;"]   ' max volume
  GOSUB Check_Busy
  SEROUT TX, Baud, ["pitch=1;"]    ' adjust voice pitch
  GOSUB Check_Busy
  SEROUT TX, Baud, ["speed=1;"]    ' set speech speed
  GOSUB Check_Busy
  
Talk:
  SEROUT TX,Baud,["say= I should be using pick basic pro;"] 
  GOSUB Check_Busy    ' wait for busy to release
  PAUSE 10000         ' long pause between message
  GOTO Talk

' -----[ Subroutines ]---------------------------------
' -- wait until Busy line released by Emic

Check_Busy:
  PAUSE 5                      ' allow busy time to activate
  WHILE Busy = Yes : WEND      ' wait until not busy
  RETURN
    
' Hard reset
' -- good when comm link is lost

Hard_Reset:                      ' reset to default values
  LOW Rst                        ' pull reset line low
  PAUSEUS 200                    ' 200uS pause
  INPUT Rst                      ' let reset float

  RETURN

I've included the .hex file here for you. Wire your 16F876A to the EMIC as shown in the I/O
Definitions section, and program it with the .hex file attached.

If it doesn't work, then you may have a damaged EMIC module, bad speaker, or something
isn't wired properly. If it does work, let me know.